E-Class (W124) 1984-1995: E 260, E 300, E 320, E 420, E 500 (Includes CE, T, TD models)

eBay mod?

Old Jan 15, 2008 | 03:55 PM
  #1  
jeffreyli86's Avatar
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eBay mod?

Hey,
I was looking around on eBay and looked at those resistor MAF mods. What are the ups and downs of these? How do they work? Being so cheap, they seem to be worth a try.. Or should I just get a resistor?

Cheers
Jeff
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Old Jan 15, 2008 | 05:45 PM
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Kind of depends on who you talk to, my brother put one on his car, didn't notice any difference. Similar to the K&N air filters....don't know what all of the hype is about those
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Old Jan 15, 2008 | 06:00 PM
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Hmm.. I just thought it is a fun and cheap thing to do and try.. If it wouldn't damage my car then I wouldn't mind losing a few bucks..

This is an interesting one! Connects to the ECU as opposed to connecting to the MAF!

This is one that I want to try..
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Old Jan 15, 2008 | 06:02 PM
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Oh and just before anyone commits attempted murder on me, I'm just doing this out of curiousity as well as the fact that I cannot find ANY chip at all for my car/engine. My car is a 1994 W124 E220 (M111 engine).

Anyway before I commit, I really do want to know the pros and cons and how they work..
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Old Jan 15, 2008 | 06:44 PM
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well I don't think that it would damage your car, but i really don't think that it will help; it def. will not give you 45, 20, or probably even 2 HP.....hopefully others can comment on this too...
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Old Jan 15, 2008 | 08:14 PM
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Our cars do not have the same computer systems that are in the newer ones. With THOSE cars, a chip can affect performance but with ours being electromechanically fuel injected, a chip does NOTHING. Save your money and buy a double pump, non-fat latte.
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Old Jan 16, 2008 | 03:11 AM
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1994 E320 Dragon Wagon
I'm thinking splicing anything into the ECU is dangerous waters. Sure they claim the magic box won't harm the ECU or void the warranty. I'd like to see the look on the service tech's face when he discovers it on an in-warranty car. That's seconds before he chops it out of circuit.

Chips and transistors can be used for analog sensor emulation. These non-intelligent boxes emulate or modify inputs to the ECU from devices like water temp, O2, etc. The box "tricks" the computer into thinking the engine is cold or the fuel mixture lean. The ECU tries to correct the condition and the engine performs different. That may be marketed as better but is subjective.

The ECU is a spendy toy to trifle with and the box is probably a glorified e-bay resistor kit. Any real tweak boxes would be more expensive and use programmable, processor based mapping technology.
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Old Jan 16, 2008 | 03:41 AM
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Originally Posted by ZorroAMG
Our cars do not have the same computer systems that are in the newer ones. With THOSE cars, a chip can affect performance but with ours being electromechanically fuel injected, a chip does NOTHING. Save your money and buy a double pump, non-fat latte.
Hmm... I thought my car has fully electronic fuel injection? It's the same engine but the NA version of the CLK230s (208) and SLK230s (170)
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Old Jan 16, 2008 | 03:44 AM
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Originally Posted by White_Knuckles
I'm thinking splicing anything into the ECU is dangerous waters. Sure they claim the magic box won't harm the ECU or void the warranty. I'd like to see the look on the service tech's face when he discovers it on an in-warranty car. That's seconds before he chops it out of circuit.

Chips and transistors can be used for analog sensor emulation. These non-intelligent boxes emulate or modify inputs to the ECU from devices like water temp, O2, etc. The box "tricks" the computer into thinking the engine is cold or the fuel mixture lean. The ECU tries to correct the condition and the engine performs different. That may be marketed as better but is subjective.

The ECU is a spendy toy to trifle with and the box is probably a glorified e-bay resistor kit. Any real tweak boxes would be more expensive and use programmable, processor based mapping technology.
Cheers. So basically the resistor injects more fuel and advances the timing and that's it? I, too, would like a Superchip or something similar for my car. However, none of the major suppliers I know of carry the chip for my car. There are LOADS of mods available for the Kompressed version of my engine (e.g. Pulley kits, chip) but none for mine.
I really want to get a lightweight pulley for my car too but again, can't find the source..
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Old Jan 16, 2008 | 04:03 AM
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Argh.....there is no "chip" to replace on our cars. It won't change a thing. You won't make the W124 fast without MAJOR work. Pulley? Even the pulley swap on the SC version of your engine is a minor increase. On a NA car, don't bother.

Use the money for repairs/cosmetic mods.
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Old Jan 16, 2008 | 05:28 AM
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Originally Posted by ZorroAMG
Argh.....there is no "chip" to replace on our cars. It won't change a thing. You won't make the W124 fast without MAJOR work. Pulley? Even the pulley swap on the SC version of your engine is a minor increase. On a NA car, don't bother.

Use the money for repairs/cosmetic mods.
Now this really sucks.. I was hoping to improve performance by a bit..
Anyone ever mated a 722.6 to our cars before?
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